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Plutonium Cobalt Comparison


Cobalt Plutonium comparison


Periodic Table

Symbol
Pu   
Co   

Group Number
0   
18
9   
9

Period Number
7   
4   

Block
f block   
d block   

Element Family
Actinide   
Transition Metal   

CAS Number
7440075   
99+
7440484   
38

Space Group Name
P121/m1   
P63/mmc   

Space Group Number
11.00   
13
194.00   
5

Facts

Interesting Facts
  • Plutonium metal if obtain from ores of uranium metal.
  • Plutonium metal is very sensitive to the change in atmospheric conditions like temperature and pressure.
  
  • The main source of Cobalt is as a by-product of copper and nickel metal mining.
  • Cobalt metal can be obtained from other elements like Oxygen, Sulfur and Arsenic.
  • It s also used in electroplating process as it exhibits anti cession properties.
  

Sources
Mining, Ores of metals   
Found in Compounds, Mining, Ores of Minerals   

History
  
  

Who Discovered
Glenn T. Seaborg, Arthur Wahl, Joseph W. Kennedy, Edwin McMillan   
Georg Brandt   

Discovery
In Between 1940 1941   
In 1732   

Abundance
  
  

Abundance In Universe
Not Available   
3 * 10-4 %   
9

Abundance In Sun
~-9999 %   
~0.0004 %   
9

Abundance In Meteorites
Not Available   
0.06 %   
10

Abundance In Earth's Crust
Not Available   
0.00 %   
21

Abundance In Oceans
Not Available   
0.00 %   
20

Abundance In Humans
Not Available   
0.00 %   
17

Uses

Uses & Benefits
  • Plutonium was used in atomic bombs and still it is being used in various weapons and Ammunition industry.
  • It is also used in nuclear power plant as source of energy for space missions.
  
  • Its alloys with aluminum and nickel are used to make powerful magnets.
  • Few other alloys exhibit high-temperature strength and hence they are used in Turbines of Jet and Gas engine.
  

Industrial Uses
Aerospace Industry, Ammunition Industry   
Chemical Industry, Electrical Industry, Electronic Industry   

Medical Uses
NA   
Pharmaceutical Industry   

Other Uses
Alloys   
Alloys   

Biological Properties
  
  

Toxicity
Toxic   
Toxic   

Present in Human Body
No   
Yes   

In Blood
0.00 Blood/mg dm-3   
37
0.04 Blood/mg dm-3   
18

In Bone
0.00 p.p.m.   
36
0.04 p.p.m.   
27

Physical Properties

Melting Point
639.50 °C   
99+
1,495.00 °C   
29

Boiling Point
3,235.00 °C   
24
2,870.00 °C   
34

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Gray   

Luster
NA   
Metallic   

Hardness
  
  

Mohs Hardness
Not Available   
5.00   
8

Brinell Hardness
Not Available   
470.00 MPa   
26

Vickers Hardness
Not Available   
1,043.00 MPa   
11

Speed of Sound
2,260.00 m/s   
99+
4,720.00 m/s   
14

Optical Properties
  
  

Reflectivity
Not Available   
67.00 %   
11

Allotropes
No   
Yes   

α Allotropes
Not Available   
α-Cobalt   

β Allotropes
Not Available   
β-Cobalt   

γ Allotropes
Not Available   
Not Available   

Chemical Properties

Chemical Formula
Pu   
Co   

Isotopes
  
  

Known Isotopes
20   
19
26   
13

Electronegativity
  
  

Pauling Electronegativity
1.28   
33
1.88   
12

Sanderson Electronegativity
Not Available   
2.56   
1

Allred Rochow Electronegativity
1.22   
26
1.70   
5

Allen Electronegativity
Not Available   
1.84   
10

Electropositivity
  
  

Pauling Electropositivity
2.72   
21
2.12   
99+

Ionization Energies
  
  

1st Energy Level
584.70 kJ/mol   
99+
760.40 kJ/mol   
19

2nd Energy Level
1,128.00 kJ/mol   
99+
1,648.00 kJ/mol   
31

3rd Energy Level
2,084.00 kJ/mol   
99+
3,232.00 kJ/mol   
22

4th Energy Level
3,338.00 kJ/mol   
99+
4,950.00 kJ/mol   
19

5th Energy Level
Not Available   
7,670.00 kJ/mol   
12

6th Energy Level
Not Available   
9,840.00 kJ/mol   
12

7th Energy level
Not Available   
12,440.00 kJ/mol   
11

8th Energy Level
Not Available   
15,230.00 kJ/mol   
12

9th Energy Level
Not Available   
17,959.00 kJ/mol   
13

10th Energy Level
Not Available   
26,570.00 kJ/mol   
7

11th Energy Level
Not Available   
29,400.00 kJ/mol   
8

12th Energy Level
Not Available   
32,400.00 kJ/mol   
8

13th Energy Level
Not Available   
36,600.00 kJ/mol   
8

14th Energy Level
Not Available   
39,700.00 kJ/mol   
9

15th Energy Level
Not Available   
42,800.00 kJ/mol   
12

16th Energy Level
Not Available   
49,396.00 kJ/mol   
11

17th Energy Level
Not Available   
52,737.00 kJ/mol   
13

18th Energy Level
Not Available   
134,810.00 kJ/mol   
1

19th Energy Level
Not Available   
145,170.00 kJ/mol   
2

20th Energy Level
Not Available   
154,700.00 kJ/mol   
4

21st Energy Level
Not Available   
167,400.00 kJ/mol   
4

22nd Energy Level
Not Available   
178,100.00 kJ/mol   
3

23rd Energy Level
Not Available   
189,300.00 kJ/mol   
3

Electrochemical Equivalent
2.28 g/amp-hr   
22
1.10 g/amp-hr   
99+

Electron Work Function
Not Available   
5.00 eV   
5

Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Radioactivity   
Chemical Stability, Ionization   

Atomic Properties

Atomic Number
94   
24
22   
99+

Electron Configuration
[Rn] 5f6 7s2   
[Ar] 3d2 4s2   

Crystal Structure
Monoclinic (MON)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
MON-Crystal-Structure-of-Plutonium.jpg#100   
HCP-Crystal-Structure-of-Cobalt.jpg#100   

Atom
  
  

Number of Protons
94   
24
22   
99+

Number of Neutrons
150   
11
26   
99+

Number of Electrons
94   
24
22   
99+

Radius of an Atom
  
  

Atomic Radius
159.00 pm   
28
147.00 pm   
34

Covalent Radius
187.00 pm   
20
160.00 pm   
30

Van der Waals Radius
200.00 pm   
28
200.00 pm   
28

Atomic Weight
244.00 amu   
19
47.87 amu   
99+

Atomic Volume
12.32 cm3/mol   
99+
10.64 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Neptunium
  
Iron
  

Next Element
Americium
  
Nickel
  

Valence Electron Potential
64.90 (-eV)   
21
95.20 (-eV)   
10

Lattice Constant
618.30 pm   
4
295.08 pm   
99+

Lattice Angles
NA   
π/2, π/2, 2 π/3   

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
19.82 g/cm3   
13
4.51 g/cm3   
99+

Density When Liquid (at m.p.)
16.63 g/cm3   
8
4.11 g/cm3   
99+

Tensile Strength
Not Available   
434.00 MPa   
9

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
26
Not Available   

Vapor Pressure at 2000 K
2.20 (Pa)   
12
0.98 (Pa)   
14

Elasticity properties
  
  

Shear Modulus
43.00 GPa   
18
44.00 GPa   
17

Bulk Modulus
Not Available   
110.00 GPa   
15

Young's Modulus
96.00 GPa   
21
116.00 GPa   
18

Poisson Ratio
0.21   
32
0.32   
12

Other Mechanical Properties
Ductile, Malleable   
Ductile   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
19.84   
7
4,500.00   
1

Magnetic Ordering
Paramagnetic   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Poor Conductor   
Poor Conductor   

Resistivity
1.46 nΩ·m   
99+
420.00 nΩ·m   
12

Electrical Conductivity
0.01 106/cm Ω   
99+
0.02 106/cm Ω   
99+

Electron Affinity
Not Available   
7.60 kJ/mol   
37

Thermal Properties

Specific Heat
0.13 J/(kg K)   
39
0.52 J/(kg K)   
9

Molar Heat Capacity
35.50 J/mol·K   
3
25.06 J/mol·K   
99+

Thermal Conductivity
6.74 W/m·K   
99+
21.90 W/m·K   
99+

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
46.70 µm/(m·K)   
6
8.60 µm/(m·K)   
99+

Enthalpy
  
  

Enthalpy of Vaporization
344.00 kJ/mol   
25
429.00 kJ/mol   
15

Enthalpy of Fusion
2.82 kJ/mol   
99+
15.48 kJ/mol   
19

Enthalpy of Atomization
360.00 kJ/mol   
26
468.60 kJ/mol   
15

Standard Molar Entropy
Not Available   
27.30 J/mol.K   
99+

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